# *, 后面是命名关键字参数, *d 可变参数, **kw 关键字参数
def f2(a, b, c=0, *, d, **kw):
    print('a =', a, 'b =', b, 'c =', c, 'd =', d, 'kw =', kw)


# f2(1,2,3)
args = (1, 2, 3)
kw = {'d': 88, 'x': '#'}
f2(*args, **kw)